Early Autumn Heat Not Gone, Cold Protection Has Its Rules
Early autumn heat has not yet dissipated, and temperatures remain high. Clearly, "cold exposure" is harmless, and there's no need to hastily add clothing. In mid-autumn, temperatures begin to drop, though it's cool but not severely cold—this is the optimal period for "autumn cold tolerance." Especially for young and middle-aged adults, clothing should be controlled consciously, intentionally allowing the body to experience some cold to avoid overheating and sweating, which can injure yin and deplete qi. In late autumn, climate changes are significant, with increasing temperature differences between morning and evening. Particularly during the transition from autumn to winter, strong cold fronts often invade, causing sudden drops in temperature. At this time, persisting blindly in "autumn cold tolerance" would be counterproductive.
Due to geographical differences, southern and northern regions have distinct climates. Generally, southern areas experience cooler weather later, with small daily temperature fluctuations, and even in winter, it may not be very cold. Therefore, there's no need to rush to add clothes, and "autumn cold tolerance" can be appropriately extended. In contrast, northern regions differ significantly—cold arrives suddenly, with large diurnal temperature variations. Thus, one must never blindly endure cold exposure to avoid catching wind-cold.
From a human perspective, children are considered "tender yin and tender yang," still in growth and development stages, with poor self-regulation ability. When exposed to cold stimuli, their bodies quickly react adversely, potentially triggering acute bronchitis, pneumonia, and other diseases. Elderly people have diminished yin and yang, weakened overall resistance, and reduced cold tolerance. Cold stimulation can cause bronchial and vascular spasm and contraction, easily leading to recurrence of chronic bronchitis or bronchial asthma, and even some coronary heart disease patients may suffer angina or myocardial infarction, while hypertensive patients may experience stroke. Therefore, children and elderly people must practice "autumn cold tolerance" with utmost caution!